Beef Nacho Casserole

Ingredients

A Delicious Mexican Casserole Made With Pizza Dough, Mexican Cheese, And A Tasty Beef Filling.

• 2 tablespoons  olive oil
• 1/2 pound  pre-sliced sweet peppers (about 1/2-inch-wide strips)
• 1 pound  lean ground beef
• 1/2 teaspoon  garlic salt
• 2 tubes (10 ounces each)  refrigerated pizza dough
• 1 jar (16 ounces)  medium-hot salsa
• 3 cups  shredded taco-cheese blend
• 1 can (2.2 ounces)  sliced black olives, drained (about 1/4 cup)
• 3 large  scallions, trimmed and sliced